PIC16LF18426-E/JQ - 8-Bit XLP MCU 32MHz 28KB Flash | Microchip
MPN: PIC16LF18426-E/JQ ✓ Hoạt độngPIC16LF18426-E/JQ Tóm tắt
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control, low power, and cost-sensitive embedded designs. Within the broader taxonomy, PIC16LF18426 sits under PIC microcontroller -> 8-bit MCU -> microcontroller unit -> integrated circuit -> semiconductor. The "LF" prefix denotes the eXtreme Low-Power (XLP) process variant, supporting operation from 1.8 V to 3.6 V with nanoWatt sleep currents in the order of tens of nanoamps, while the non-LF "F" variant extends to 5.5 V.
Key features of the PIC16LF18426-E/JQ include active current consumption below 1 mA at 32 MHz with 3.3 V VDD, deep sleep currents below 100 nA with peripheral retention via the Windowed Watchdog Timer (WWDT), and 4 KB of self-programmable Flash. The device offers up to 17 I/O pins, internal 32 kHz and 32 MHz oscillators, and a temperature-indicator module that simplifies thermal monitoring. AEC-Q100 qualification is available on selected part numbers for automotive-grade designs.
The PIC16LF18426 family uses a 14-bit instruction word RISC architecture with a single-cycle hardware multiplier, allowing many CIP operations to run independently of the CPU. This produces deterministic latency for sensor front-ends while keeping CPU wake time short - a critical balance for battery-powered edge devices.
Typical applications include battery-powered IoT sensor nodes, low-power remote controls, wearable health and fitness devices, white-goods and appliance controllers, automotive body and lighting ECUs (AEC-Q100 parts), and industrial sensor transmitters. The combination of ADCC, ZCD, CWG, and PWMs enables single-chip control loops previously requiring dedicated analog ASICs.
Design consideration: when migrating from a 5V PIC16F18426 to the 3.3V PIC16LF18426, verify that all peripherals operate at the lower rail - the LF device is not 5V tolerant on I/O. A simple BOM change to a 3.3V LDO is usually sufficient. Always place a 100 nF decoupling capacitor within 3 mm of VDD and a 10 uF bulk capacitor near the package.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes that complement the Microchip datasheet, helping engineers select, source, and apply the PIC16LF18426-E/JQ efficiently.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF18426-E/JQ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF18426-E/JQ (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, I/O Pins, Family, Core Architecture.
PIC16F18426-I/JQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18425-E/JQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18424-E/JQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18326-E/JQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18325-E/JQVAO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18326-E/JQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18426-E/JQ Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit enhanced mid-range |
| CPU Speed | 32 MHz (max) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| SRAM | 2 KB |
| EEPROM | 256 bytes |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +125 C (E = extended) |
| Hộp | 16-pin UQFN-EP, 4 x 4 mm |
| I/O Pins | Up to 17 |
| DAC | 5-bit / 8-bit |
| Comparators | 2 |
| PWM Channels | 2 x 10-bit |
| Communication | EUSART, SPI, I2C |
| Core Independent Peripherals | CWG, ZCD, ADCC, NCO, WWDT |
| Low-Power Modes | XLP nanoWatt technology, sleep currents <100 nA |
| Internal Oscillator | 32 kHz LF and 32 MHz HF |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF18426-E/JQ
| Chân 1 | RA5 — Bidirectional I/O; analog input; ICSPDAT |
| Chân 2 | RA4 — Bidirectional I/O; analog input |
| Chân 3 | RA3/MCLR — Input only or Master Clear (reset); weak pull-up |
| Chân 4 | RA2 — Bidirectional I/O; analog input |
| Chân 5 | RA1 — Bidirectional I/O; analog input |
| Chân 6 | RA0 — Bidirectional I/O; analog input |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RC5 — Bidirectional I/O |
| Chân 9 | RC4 — Bidirectional I/O |
| Chân 10 | RC3 — Bidirectional I/O |
| Chân 11 | RC2 — Bidirectional I/O |
| Chân 12 | RC1 — Bidirectional I/O |
| Chân 13 | RC0 — Bidirectional I/O |
| Chân 14 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Chân 15 | RA7 — Bidirectional I/O; ICSPCLK |
| Chân 16 | RA6 — Bidirectional I/O |
| Chân 17 | EP — Exposed pad - thermal/ground, must be soldered to VSS plane |
Ứng dụng tiêu biểu
PIC16LF18426-E/JQ phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Wearable Health and Fitness Device, Automotive Body and Lighting ECU, Industrial 4-20 mA Loop-Powered Sensor Transmitter, Smart Home Wireless Sensor (Zigbee/BLE End-Device), White Goods and Appliance User Interface.
Battery-Powered IoT Sensor Node
The PIC16LF18426-E/JQ is ideally suited for battery-powered IoT sensor nodes that must operate for years on a single coin cell or 2xAA battery. Its 32 MHz enhanced mid-range core executes sensor reads in microseconds before returning to sleep, while the LF XLP technology keeps deep-sleep currents under 100 nA with peripheral retention via the Windowed Watchdog Timer. The integrated 12-bit ADCC with computation performs oversampling and averaging autonomously, freeing the CPU to remain asleep for 99% of the duty cycle. The 28 KB Flash accommodates BLE/Zigbee/LoRa stack shims plus application logic, and the 16-pin UQFN-EP 4x4 mm package fits inside sensor housings as small as 8x8 mm. A typical implementation reads a temperature or humidity sensor every 10 seconds, transmits a packet via EUSART to an attached radio module, and sleeps - achieving average current of 5-15 uA and a battery life of 3-5 years on a single CR2032.
Được đề xuất
Wearable Health and Fitness Device
For wrist-worn fitness trackers, heart-rate straps, and continuous glucose monitor (CGM) pods, the PIC16LF18426-E/JQ delivers the right mix of low power, small footprint, and analog integration. Its 1.8-3.6 V operating range aligns with Li-ion coin cells, and the 12-bit ADCC simultaneously samples photoplethysmography (PPG) and bio-impedance signals without external analog front-end ICs. The 5-bit DAC drives the LED bias for the PPG sensor, while the two comparators detect battery low-voltage and signal saturation events in hardware, bypassing the CPU. Sleep current below 100 nA preserves battery during standby, and the 16-pin UQFN-EP occupies under 16 mm squared of PCB area - small enough for a 10 mm watch module. The -40 C to +125 C extended temperature range supports skin-contact wearable use cases including outdoor sports and continuous body-temperature monitoring.
Được đề xuất
Automotive Body and Lighting ECU
In non-safety automotive subsystems such as interior lighting controllers, RGB ambient LED drivers, seat-occupancy sensors, and HVAC flap actuators, the PIC16LF18426-E/JQ provides the CIP integration and PWM resolution required to reduce external component count. The CWG (Complementary Waveform Generator) produces complementary PWM outputs with programmable dead-band for driving N-channel MOSFET half-bridges that switch LED strings or DC motors - eliminating the need for an external gate-driver IC in many cases. The ZCD (Zero-Cross Detect) detects AC-line zero crossings for triac-based dimming without an optocoupler in low-voltage lighting controllers. AEC-Q100 qualified variants of the PIC16F18426 family share the same 16-pin UQFN-EP footprint, enabling drop-in upgrade to the automotive grade. Operating from -40 C to +125 C and tolerating 5 V supply rails (F variant), this MCU fits comfortably under the hood for non-safety automotive modules.
Được đề xuất
Industrial 4-20 mA Loop-Powered Sensor Transmitter
Two-wire 4-20 mA current-loop transmitters derive all operating power from the loop itself, so the controller must consume well under 3.5 mA total - a target the PIC16LF18426-E/JQ meets handily with its XLP sleep modes. Its 12-bit ADCC digitizes bridge pressure sensors or RTD inputs with 1 LSB resolution while consuming under 250 uA active. The on-chip 5-bit DAC generates the 4-20 mA span calibration, and the 10-bit PWM with on-chip timer can be smoothed to provide the loop current output directly, removing a dedicated DAC-to-current converter IC. The 1.8 V minimum VDD allows operation down to 6 V loop voltage with a simple LDO. The extended -40 C to +125 C temperature range covers outdoor process-control installations. A typical loop transmitter PCB fits in a 12 mm diameter cylindrical housing thanks to the 16-pin UQFN-EP 4x4 mm MCU footprint.
Được đề xuất
Smart Home Wireless Sensor (Zigbee/BLE End-Device)
Zigbee Green Power and Bluetooth Low Energy end-device designs rely on sleepy MCUs that wake only when a button press or sensor event occurs. The PIC16LF18426-E/JQ is a strong fit: its deep-sleep current below 100 nA preserves coin-cell life for years, while its EUSART/SPI/I2C peripherals connect directly to common radio modules such as the Microchip SAM R34 or third-party BLE SoCs in companion-processor configurations. The on-chip 12-bit ADCC with hardware oversampling reads temperature, humidity, or door-switch sensors without waking the CPU for averaging. The CWG generates PWM-controlled buzz tones for user feedback. The 28 KB Flash accommodates Zigbee GP 1.1 stack libraries plus application code, and the 16-pin UQFN-EP 4x4 mm package fits on a CR2032 coin-cell sensor board as small as 18 mm diameter.
Được đề xuất
White Goods and Appliance User Interface
Refrigerator displays, washing-machine control panels, microwave ovens, and dishwasher HMI boards all need a low-cost MCU with PWM-driven beepers, capacitive-touch sensing, and segmented LCD or LED display drive. The PIC16LF18426-E/JQ fits these white-goods designs with its 17 I/O pins handling matrix keypads up to 4x4, its 10-bit PWM producing beeper tones, its two comparators for water-level or door-switch detection, and its EUSART for connecting to a main inverter controller board. The on-chip temperature indicator simplifies overtemperature shutdown without an external sensor. The 1.8-3.6 V LF variant suits 3.3 V regulated supplies; for legacy 5 V appliances the F variant PIC16F18426 provides drop-in compatibility in the same 16-UQFN-EP footprint. The extended temperature range supports appliance environments that can reach 70 C inside a sealed enclosure.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF18426-E/JQ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F18426-I/JQ | PIC16LF18425-E/JQ | PIC16LF18424-E/JQ | PIC16LF18326-E/JQ |
|---|---|---|---|---|---|
| Package | 16-UQFN-EP 4x4 mm | 16-UQFN-EP 4x4 mm - same | 16-UQFN-EP 4x4 mm - same | 16-UQFN-EP 4x4 mm - same | 16-UQFN-EP 4x4 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 28 KB | 28 KB | 14 KB | 7 KB | 28 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| VDD Range | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| ADC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit ADC |
| CWG/ZCD | Yes | Yes | Yes | Yes | No |
| Temperature Grade | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +125 C (E) |
Bảo phân biệt quan trọng
- 12-bit ADCC with computation versus older 10-bit ADC (vsPIC16LF18326-E/JQ)
- 28 KB Flash versus lower-density same-package variants (vsPIC16LF18425-E/JQ (14 KB) and PIC16LF18424-E/JQ (7 KB))
- eXtreme Low-Power (XLP) process node with <100 nA deep sleep (vsPIC16F18426-I/JQ)
Ghi chú thiết kế
Decoupling: place a 100 nF X7R ceramic capacitor within 3 mm of the VDD pin (pin 14) and a 10 uF X5R bulk capacitor near the package. Tie the exposed pad (EP) to a clean VSS plane with at least 4 thermal vias to the inner ground layer. For battery-powered designs, add a 10 uF tantalum or polymer bulk capacitor at the battery terminals to handle peak transmit-current bursts from attached radio modules.
Voltage-mismatch pitfall: the PIC16LF18426-E/JQ is NOT 5 V tolerant. Applying 5 V to any I/O pin (or VDD) on the LF variant can permanently damage the Flash memory and I/O cells. If your design must run from 5 V, choose the PIC16F18426-I/JQ (1.8-5.5 V) in the same 16-UQFN-EP package - the pinout is identical, so no PCB change is required.
ICSP routing: route ICSPDAT (pin 1 / RA5) and ICSPCLK (pin 15 / RA7) as a 2-wire bus with 100-ohm series resistors placed near the MCU. Keep these traces short (<50 mm) and avoid running parallel to switching-power traces. Microchip recommends a 4-pin header (ICSPDAT, ICSPCLK, VDD, VSS) for production programming access. If you do not need ICSP, leave RA5 and RA7 as standard GPIO.
The 16-UQFN-EP package relies on the exposed pad for thermal dissipation. Solder the EP to a copper pad of at least 8 mm squared on the top layer and stitch 6-8 thermal vias (0.3 mm drill) to the inner VSS plane. At 32 MHz / 3.3 V the PIC16LF18426 dissipates under 20 mW, so thermal management is straightforward - the EP requirement is mostly for ground reference and assembly solder-wetting quality.
Thông tin tuân thủ
RoHS compliant per Microchip product page. -E suffix denotes extended -40 C to +125 C temperature range. AEC-Q100 qualification is available on selected PIC16F18426 (F-variant) part numbers; the LF part is generally used in industrial and consumer applications. For automotive AEC-Q100, use the F variant or contact your Microchip FAE.
